Hair drug testing: Many street drugs (or their breakdown products in the body) are absorbed into the hair. A sample of hair can be tested for recent drug use. Hair analysis: Testing of hair for toxic exposures, such as lead or mercury poisoning.
Gas Water Heater, water not hot enough-Thermostat or Sediment. The dip tube probably disintigrated. The dip tub sends cold water to the bottom of the tank for heating when its heated it rises to the top of the tank. Its possible that the dip tube broke of and now you have cold water mixing with the hot water on top.
If the gas line is too small, the water heater will act like any other appliance starved for fuel. It may even shut down.The gas line leading to the water heater must be sized correctly. Letâs assume we are going to install a tankless water heater with a maximum BTU rating of 199,000.